body{
	padding: 0px;
	margin: 0px;
	overflow-x: hidden;
}
.Header{
	width: 100%;
	height: 80px;
}
.log{
	float: left;
	margin-left: 260px;
	margin-top: 10px;
}
.login_log{
	display: inline-block;
	background: url(../picture/login.png) no-repeat;
	width: 20px;
	height: 20px;
	vertical-align: middle;
}
.booklib_log{
	display: inline-block;
	background: url(../picture/booklib.png) no-repeat;
	width: 20px;
	height: 20px;
	vertical-align: middle;
}
.nav dd{
	margin-right: 18px;
}
.so{
	float: left;
	margin-left: 50px;
	margin-top: 10px;
	line-height:46px ;
	padding: 7px;
}
.nav{
	float: left;
	list-style: none;
	line-height: 46px;
	margin-top: 20px;
	margin-left: 250px;
}
.nav dd{
	float: left;
	margin-inline-start:0px;
}
.NavBar{
	width: 100%;
	float: left;
	text-align: center;
	background-color: #FF6600;
}
.NavBar div{
	width: 740px;
	margin: auto;
	height: 54px;
	position: relative;
}
.NavBar a{
	display: inline;
	float: left;
	line-height: 54px;
	font-size: 14px;
	color: #fff;
	position: relative;
	overflow: hidden;
}
.NavBar a:hover{
	background-color: #000000;
}
.now{
	background: #555;
	box-shadow: 0 -2px 6px rgba(0,0,0,.3) inset;
	font-weight: 700;
	border-radius: 4px;
}
.NavBar a span{
	padding: 0 17.5px;
}
.Footer{
	border:1px solid lightgrey;
	float: left;
	width: 100%;
	text-align: center;
	background-color: #000000;
	color: white;
}
.headimage{
	width: 40px;
	height: 40px;
	border-radius: 50%;
}
